1. With the continuous advancement of PCB screen printing technology, new materials are increasingly utilized in the PCB manufacturing industry.

2. Both the PCB screen printing process and testing equipment are improving daily, allowing the current technology to handle high-density PCB production effectively.

3. Silk screen printing in PCBs has three primary applications in the manufacturing process:

4. A. Application of solder resist layers on PCB surfaces;

5. B. Graphic transfer processes for PCBs and application of anti-corrosion and anti-electroplating coatings;

6. C. Application of surface marker symbols on PCBs.

Sure! To better tailor the revisions, could you specify what aspects of the text you’d like to focus on—clarity, technical accuracy, or overall flow?

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